The automation of vehicles could prove to have a substantial impact on the environment, although the nature of this impact could be beneficial or harmful depending on several factors. Because automated vehicles are much less likely to get into accidents compared to human-driven vehicles, some precautions built into current models (such as anti-lock brakes or laminated glass) would not be required for self-driving versions. Removing these safety features would also significantly reduce the weight of the vehicle, thus increasing fuel economy and reducing emissions per mile. Self-driving vehicles are also more precise with regard to acceleration and breaking, and this could contribute to reduced emissions. Self-driving cars could also potentially utilize fuel-efficient features such as route mapping that is able to calculate and take the most efficient routes. Despite this potential to reduce emissions, some researchers theorize that an increase of production of self-driving cars could lead to a boom of vehicle ownership and use. This boom could potentially negate any environmental benefits of self-driving cars if a large enough number of people begin driving personal vehicles more frequently.[53]
Bien évidemment, cet article vous donne les bases de l'utilisation de cette librairie. Il est fort recommandé d'aller se documenter directement sur le site officiel (https://selenium-python.readthedocs.org/) pour en apprendre d'avantage notamment sur les autres manières de localiser les éléments. Cette librairie couplée ou non avec d'autres est très puissante et permet de faire énormément de choses. Pour ma part je m'en suis servi pour récupérer automatiquement des centaines de fichiers Excel plutôt que de le faire à la main. Ou tout simplement pour faire du scrapping (Voir mes autres articles).
But the code wants to run all at once, in a millisecond. By the time IE actually loads the page of search results, the entire subroutine is long over. We have to slow things down and wait for the browser while its navigating. We could use something like Application.Wait(Now + TimeValue("00:00:05")) to wait 5 seconds, but if the page loads faster we’re wasting time waiting for nothing, and if the page takes longer we’re in the same pickle as before. Do While objIE.Busy = True Or objIE.readyState <> 4: DoEvents: Loop is an elegant Do...Loop solution consisting of 3 VBA statements we’ve tidied up on one line, using colons (:) to connect them. It’s saying: while IE is busy navigating, just sit here and run in circles. objIE.Busy = True and objIE.readyState <> 4 (<> means not equal) are essentially the same thing –one could probably be ommitted– but just to make sure the page is really done loading we make both of these conditions requirements for getting out of the loop, by using the logical operator Or. The DoEvents part is technically not needed but we add it in the loop to free up processing resources and allow other things to happen within Excel during this time, asynchronous to the running loop. For the over-achievers out there, here are some other ways we could have written this line of code to do the same thing.
Many supermarkets and even smaller stores are rapidly introducing Self checkout systems reducing the need for employing checkout workers. In the United States, the retail industry employs 15.9 million people as of 2017 (around 1 in 9 Americans in the workforce). Globally, an estimated 192 million workers could be affected by automation according to research by Eurasia Group.[68]
When digital computers became available, being general-purpose programmable devices, they were soon applied to control sequential and combinatorial logic in industrial processes. However these early computers required specialist programmers and stringent operating environmental control for temperature, cleanliness, and power quality. To meet these challenges this the PLC was developed with several key attributes. It would tolerate the shop-floor environment, it would support discrete (bit-form) input and output in an easily extensible manner, it would not require years of training to use, and it would permit its operation to be monitored. Since many industrial processes have timescales easily addressed by millisecond response times, modern (fast, small, reliable) electronics greatly facilitate building reliable controllers, and performance could be traded off for reliability.[89]

I used Firebug to find the ID of the search button (magnifying glass) on the page, then used .getElementById again to grab it, and the .Click method to click it. Alternatively, we could have submitted the search box form like this instead objIE.document.getElementById("search_form_homepage").Submit. Actually, there’s a simpler method still that would allow us to skip the previous 3 steps altogether. Can you see it? Hint: take a look at the url we ended up with… https://duckduckgo.com/?q=auto+parts+in+Houston+TX. Got it? If you still don’t see it, and you don’t think you’ll be able to sleep tonight, email me 🙂